METHOD AND APPARATUS FOR DETERMINING PRECODING MATRIX

摘要

Disclosed are a method and an apparatus for determining a precoding matrix. The method comprises: respectively dividing each vertically-dimensional beam group, to obtain vertically-dimensional beam sub-groups, and respectively dividing each horizontally-dimensional beam group, to obtain horizontally-dimensional beam sub-groups; determining a first-stage codebook according to a Kronecker product between each vertically-dimensional beam sub-group obtained by dividing each vertically-dimensional beam group and each horizontally-dimensional beam sub-group obtained by dividing each horizontally-dimensional beam group; and selecting multiple columns of wave beams from the determined first-stage codebook by using a second-stage codebook and performing phase adjustment, to determine a precoding matrix.